it works perfectly for me in OnTester()
string row = StringFormat("%i,%i,...",...); int fH = FileOpen(fName,FILE_READ|FILE_WRITE); FileSeek(fH,0,SEEK_END); FileWriteString(fH, row, StringLen(row) ); FileClose(fH);
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I'm running a tester with optimization with this expert advisor:
handle=FileOpen("data1.csv",FILE_CSV|FILE_READ|FILE_WRITE,',');
if(handle<1)
{
return(false);
}
else
{
FileWrite(handle, "Bidibidibadibum");
}
It works on my OnInit function, OnTick, OnChart, it works everywhere. But not on my OnTester(). Where I'm messing up? Isn't OnTester called when I finish a strategy test?